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Ram charging
Posted: Wed Apr 26, 2006 11:31 pm
by SchumieFan
has anyone experimented with it? im thinking of fabricating a new intake pipe with a twisted sheet of metal inside it to create turbulance.... im wondering what the effect would be and ive discovered there is quite a debate on the subject as to whether it would help or hinder performance, but it sounds good in theory... what do you boys think?
heres a mock up for dummies
Blue = cold air
red = metal fin for turbulance
black = intake pipe
Posted: Wed Apr 26, 2006 11:36 pm
by SchumieFan
My mums libero has MVV which is sort of the same idea...
In 1992, Mitsubishi began producing the MVV (Mitsubishi Vertical Vortex) engine. The lean-burn MVV engine can achieve complete combustion with an air-fuel ratio as high as 25:1, whereas conventional engines require 14.7:1. The result is 13% better fuel economy at 40km/h over a conventional engine powered vehicle. This 13% improved fuel economy means lower CO2 emissions, a major factor in global warming.
The MVV engine utilizes a twin intake port design to induce vertical vortices inside the cylinder. The result is a barrel pattern of stratification ensuring in the process that the influxes from the two intake ports do not mix together until the end of the compression stroke. The design of the compression chamber ensures the total collapse and transformation into small-scale turbulence of the vertical vortices at the end of the compression stroke. The turbulence and the mixture stratification provide accelerated and stable combustion.
The MVV engine is equipped on some Minica (Towny) and Libero (Lancer Station Wagon) models in Japan.
Posted: Thu Apr 27, 2006 10:51 am
by scarecrow
Unless you have the big bucks, and lots of equipment, to throw into R&D all you're going to end up with is a big ass restriction in your intake pipe and hotter air.
I don't think it's something you can knock up at home schumie, sorry.
Even if a workshop like RPW or UAS were to throw there weight behind it is quite likely that the biggest gain they'll get will be equivalent to 1, or less, killowatts.
Posted: Thu Apr 27, 2006 5:48 pm
by SchumieFan
yeah but the idea is to create turbulance inside the cylander and therefore have a more even detonation inside.
trust me, i have places i could knock this up
piece of sheet metal and a 3 inch pipe, no worries
Posted: Thu Apr 27, 2006 5:52 pm
by mxysxy
Its $26 in Northern Mitsu,, they normally sell it for Magna
Small Piece of a wide tube metal, with flaps and holes in it, you attach it to beginning of your intake pipe, and it makes the tornado affect.
It works apparently, they even have this little fan looking thing on display which doesn’t turn normally, unless you use this metal thingi
Posted: Thu Apr 27, 2006 5:55 pm
by SchumieFan
serious? have you got a website max?
Posted: Thu Apr 27, 2006 6:00 pm
by mxysxy
nope but I can ask about it on Monday, if it works for FTO?
ITs funny, when I went to the service, I always played with the bloody thing but never though of putting it in to the car actually
Posted: Thu Apr 27, 2006 6:04 pm
by SchumieFan
im sure it wouldnt be too hard to fit it in, even if you had to get a new intake pipe. not a big deal
Posted: Thu Apr 27, 2006 6:24 pm
by bobz
Just a thought of reason, if it works so great why dosent the manufacturer pick it up and install it from new to get the extra HP and or fuel economy.
second, even if you do introduce the turbulance into the inlet tract then you still have the throttle body to negotiate then when it gets into the inlet manifold it makes a 90 degree bend so how much of the tornado effect will be left if any?
BobZ
Posted: Thu Apr 27, 2006 7:23 pm
by SchumieFan
bobz wrote:Just a thought of reason, if it works so great why dosent the manufacturer pick it up and install it from new to get the extra HP and or fuel economy.
See MVV diagram
bobz wrote:
second, even if you do introduce the turbulance into the inlet tract then you still have the throttle body to negotiate then when it gets into the inlet manifold it makes a 90 degree bend so how much of the tornado effect will be left if any?
BobZ
it doesnt have to flow in a straight line so long as its turbulant, again, see first diagram, the air will be circulateing through the throttle body no matter how open it is
Posted: Thu Apr 27, 2006 10:18 pm
by G_A_V
whats mvv ?
My Mas sensor has a honeycomb filter system, which i think does what your talking about
Posted: Thu Apr 27, 2006 11:19 pm
by SchumieFan
WHAT! DID ANYONE ACCTUALLY READ MY POST?
Posted: Thu Apr 27, 2006 11:20 pm
by G_A_V
sorry mate, pic wasnt working when i looked
Posted: Thu Apr 27, 2006 11:23 pm
by SchumieFan
meh, thats a'ight
im just pissed off cause one of my valve guides is broken and now io have to have the fucker punched out and put a new 1 in.... soooooo not ammused!
Posted: Fri Apr 28, 2006 12:14 am
by bobz
SchumieFan wrote:My mums libero has MVV which is sort of the same idea...
In 1992, Mitsubishi began producing the MVV (Mitsubishi Vertical Vortex) engine. The lean-burn MVV engine can achieve complete combustion with an air-fuel ratio as high as 25:1, whereas conventional engines require 14.7:1. The result is 13% better fuel economy at 40km/h over a conventional engine powered vehicle. This 13% improved fuel economy means lower CO2 emissions, a major factor in global warming.
The MVV engine utilizes a twin intake port design to induce vertical vortices inside the cylinder. The result is a barrel pattern of stratification ensuring in the process that the influxes from the two intake ports do not mix together until the end of the compression stroke. The design of the compression chamber ensures the total collapse and transformation into small-scale turbulence of the vertical vortices at the end of the compression stroke. The turbulence and the mixture stratification provide accelerated and stable combustion.
The MVV engine is equipped on some Minica (Towny) and Libero (Lancer Station Wagon) models in Japan.
You guys do understand that this design, works because of the way the head is machined and not because of a piece of metal inside the induction piping, it is also not anything new, Chrysler had what it called Electronic lean burn ELB which was electronic ignition and hemispherical combustion chambers in the late 70's
BobZ
Posted: Fri Apr 28, 2006 12:25 am
by khunjeng
not sure this will have any benifit assuming u don't increase the restriction whihc is likely...but is a great idea.
Posted: Fri Apr 28, 2006 8:18 am
by SchumieFan
yeah i realise its a completly different concept, but the idea is the same... and for 10 minutes worth of work its atleast worth an experiment even if it is just for the bragging rights! plus im sure it would have more of a performance advantage than the neons people have on their cars.... but theres only 1 way to find out
Posted: Fri Apr 28, 2006 8:38 am
by khunjeng
SchumieFan wrote:yeah i realise its a completly different concept, but the idea is the same... and for 10 minutes worth of work its atleast worth an experiment even if it is just for the bragging rights! plus im sure it would have more of a performance advantage than the neons people have on their cars.... but theres only 1 way to find out
Neons are a 10kw gain mate...no way can u beat that mod for performance
Posted: Fri Apr 28, 2006 10:49 am
by FTO338
khunjeng wrote:SchumieFan wrote:yeah i realise its a completly different concept, but the idea is the same... and for 10 minutes worth of work its atleast worth an experiment even if it is just for the bragging rights! plus im sure it would have more of a performance advantage than the neons people have on their cars.... but theres only 1 way to find out
Neons are a 10kw gain mate...no way can u beat that mod for performance
Chris you forgot the ultimate performance enhancement, it give at least 100kw gain & give every teeny puppy the "king of tosser" factor when they doing lappy around the block for 2hrs.
Wait for it................*i can hear the drum roll now*
It is the rice stickers, just put crap load along the side of your car or all over the car & you be the fastest guy to reach your "destination" on the street & in bed.
Posted: Fri Apr 28, 2006 10:52 am
by SchumieFan
well it worked for you aye kevvy.... how is your missus?